Brake-head.



H. B. ROBISCHUNG.

BRAKE HEAD.

APPLICATION FILED APR. 23, 1908.

Patented Dec. 8, 1908A Vlo narran sra'rns rafrnivfr oratori.

- HENRY B. ROBISCHUNG, OF CLOVERDALE, MICHIGAN, ASSIGNOR TC'CHICAGO RAILWAY EQUIPMENT COMPANY,l OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.A

Batam-HEAD.

Specification of Letters Patent.

Patented nec. e, 190e.

Application filed April 23, 1908. 4Serial No. 428,721.

To all whom it may concern:

Be it known that I, HENRY B'. RoniscHUNe, a citizen of the United States, residing at Cloverdale, Barry county, Michigan, have invented a certain new and 'useful lmprovement in Brake-Heads, et' which' the following is a full, clear, and exact description, such willenable others skilled in the artV to which it appertains to make and use the saine, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a front elevational view of my improved brake head; Fig. 2 is a sectional view on the line 2 2 of Fig. 1; Figs. 3 and L.l are sectional views illustrating modifiedv forms of embedded reinforcing plates; Fig. is a side elevational view illustrating a modified form of ex osed reinforcing plate; and Fig. 6 isa/front elevational view of the structure illustrated in'fFig. 5.

This invention relates to a new and useful improvement in brake heads, the object being to provide a brake head with a strengthening member or members across .what might be termed the throat portion of the brake head located between the two jaws.n l

The brake ing drawing is what is known as the Christie head, the jaws and lugs conforming toA the templet requirements as prescribed by the Master Car-Builders Association. Brake heads of this type in' present use are usually made of malleable iron, and in practice it has been determined that either from improper mounting of the brake .Shoe in the head or improper setting' of the brake head on the beam, the jaws of the brake head are subjected to unusual strains which has developed a weakness in Ithat art of the brake head indicated at A, whl'ch I have designated as the 'throat or connecting portion between the jaws.

My invention consistsI in providing the brake head with a strengthening piece or pieces whose function is to reinforce the throat portion of the brake head so that said brake 4head can withstand-heavy strains imposed upon its jaws.

In the drawings, l indicates a brake head having the usual jaws 1aand the usual lugs l".

In the construction shown in Figs. l and 2, a reinforcing plate 2 is arranged. in ahead shown in the accompanymold before the brake head is cast, said. plate being provided with appropriate openings for the passage of thev molten metal therethrough, and having its end bent as at 2f*V for the purpose of better securing the' plate. in position. Plate 2 is preferably centrally embedded in the throat portion of the finished brake head as shown, and may be made of steel or any other metal capable ot' withstanding the tension strains to which it is subjected.

In Fig..3'tl 1e reinforcing plate marked 3 is similarto that shown in Fig. 2, except that'its edges are straight.

In Fig. 4 the reinforcing plate 4 is not provided with concavo-convex middle portion but is fiat.

In Figs. 5 and 6, instead of embedding the reinforcing plate in the metal of the headA I recess the side faces of the, head and introduce links 5 which are' secured in position by suitable fastening devices 6. course, it will be understood that the strengthening members 5 and the fastening device 6 may be arranged .in the mold and the metal of the brake head cast therearound.

I am aware that minor changes in the construction, arrangement and combination of the several parts of my device'can be made andsubstituted for those herein shown and described without in the least .departing from the nature and principle of my invention.

Having thus described the invention, what is claimed 'as new and desired to be secured by Letters Patent is: Y

1. A brake head having a reinforcing member bridging its throat portion; substantially as described.

2. A brake head having a reinforcing member bridging its throatportion and having its ends anchored or secured in position on each side of said throat portion; substantially as described.

3. A brake head having-a strengthening 'plate embedded in its throat portion; sub-.

stantially as described.

4. A brake head having a Aperforated strengthening plate embedded in its throat' portion; substantially as described. i'

5. A brake head having a .concavo-convex strengthening plate embedded in its throat portion; substantially as described.

6. Av brake head having a strengthening sol 1 (liti substantially as described.

7. A brake head having a plurality of strengthening plates bridglng its throat portion; substantially as described.

8. A brake` head having a reinforcing member bridgin its throat portion and having its ends anc ored or-secured in position on each side of said throat portion, s'aid reinforcingmember being exposed to the eX- terior; substantially as described.

9. A brake head having strengthening plates arranged in' the side faces, said strengthening platesbeing held in position as described.

lO. A brake head having strengthening plates set in its side faces and ush with the planes of said side faces, said strengthenin plates being secured in position by suitab e fastening devices; substantially as described.

In. testimony whereof I hereunto afHX my signature in the presence of two Witnesses, this fifth day of July 1907.

HENRY B. ROBISCHUNG.

Witnesses:

HUGH D. CAMPBELL, J. O. CHAMBERLAIN.

by suitable fastening devices; substantially 

